For citations:
Ivanov A.V., Gabdullin R.R., Sennikov A.G., Bakaev A.S., Novikov I.V., Malenkina S.Yu., Badulina N.V., Migranov I.R., Yakovishina E.V., Strulev S.A., Bespalko N.E. Palaeoecological and palaeogeographical reconstructions of formational conditions for Late Cretaceous sediments of Ulyanovsk-Saratov foredeep, comprising finds of the burrows of the polychaete worms. Moscow University Bulletin. Series 4. Geology. 2025;64(2):33-50. (In Russ.) https://doi.org/10.55959/MSU0579-9406-4-2025-64-2-33-50